CVE-2026-111368
mediumClassroomIO through 1.0.0 contains an insecure direct object reference vulnerability in the Hono API course submission routes that allows course tutors or admi…
ClassroomIO through 1.0.0 contains an insecure direct object reference vulnerability in the Hono API course submission routes that allows course tutors or admins to modify submissions in other courses. Attackers can supply their own course id with another course's submission UUID to PUT or DELETE handlers to overwrite answers, grades, feedback, and grading status or delete submissions.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/classroomio/classroomio disclosure@vulncheck.com
- https://github.com/classroomio/classroomio/blob/v1.0.0/apps/api/src/routes/course/submissi... disclosure@vulncheck.com
- https://github.com/classroomio/classroomio/blob/v1.0.0/packages/db/src/queries/submission/... disclosure@vulncheck.com
- https://github.com/classroomio/classroomio/commit/1844ad9671a0d9c2566d3431d82f34d39016242c disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/classroomio-course-resource-id-scoping-idor disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/classroomio-through-1.0.0-idor-via-course-submission-... disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/classroomio-course-resource-id-scoping-idor 134c704f-9b21-4f2e-91b3-4a467353bcc0